Obtain an OAuth token with the scopes you need (readonly or write) to allow the HTML-CSS to Image app to read and modify your GHL data securely.
Complete the OAuth flow for the HTML-CSS to Image app to gain permission to perform actions in your GHL account, such as creating tasks and updating contact records.
GET /contacts/:contactId — Retrieve a contact by ID; GET /contacts/:contactId/tasks — List tasks for a contact; GET /contacts/:contactId/tasks/:taskId — Get a specific task; GET /contacts/:contactId/notes — List notes; GET /contacts/:contactId/notes/:id — Get a note; GET /contacts/:contactId/appointments — List appointments; GET /contacts/ — List contacts; GET /contacts/business/:businessId — List contacts for a business; POST /contacts/ — Create a contact; PUT /contacts/:contactId — Update a contact; DELETE /contacts/:contactId — Delete a contact; POST /contacts/:contactId/tasks — Create a task; PUT /contacts/:contactId/tasks/:taskId — Update a task; PUT /contacts/:contactId/tasks/:taskId/completed — Mark a task completed; DELETE /contacts/:contactId/tasks/:taskId — Delete a task; POST /contacts/:contactId/tags — Add tags to a contact
Trigger: Retrieve a contact record in HTML-CSS to Image to enrich profiles or sync data.
Actions: GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes to assemble a complete profile.
Methods: GET /contacts/:contactId; GET /contacts/:contactId/tasks; GET /contacts/:contactId/notes
Key fields: contactId, taskId, noteId
Trigger: A new HTML form submission prompts task creation for the related contact.
Actions: POST /contacts/:contactId/tasks, PUT /contacts/:contactId/tasks/:taskId
Methods: POST /contacts/:contactId/tasks; PUT /contacts/:contactId/tasks/:taskId
Key fields: contactId, taskId
Trigger: Task status changes in HTML-CSS to Image update GHL accordingly.
Actions: PUT /contacts/:contactId/tasks/:taskId/completed, PUT /contacts/:contactId/tasks/:taskId
Methods: PUT /contacts/:contactId/tasks/:taskId/completed; PUT /contacts/:contactId/tasks/:taskId
Key fields: contactId, taskId, status
Automate data sync between apps without writing code, using REST endpoints and templates.
Set up quickly with guided scopes, endpoints, and sample calls, reducing setup time.
Centralize contact data across HTML visuals and CRM actions for consistency.
Overview of core terms and processes used in this integration, including API, endpoints, OAuth, and webhooks.
Application Programming Interface; a set of rules that lets different software entities communicate with GHL data.
A specific URL in the GHL API that performs an action or returns data.
Open Authorization; a standard for granting secure access tokens to apps.
A callback URL that GHL can call to push events in real time.
Generate visually rich contact summaries by combining live data from Contacts API with HTML/CSS to render image-facing profiles.
Auto-create and update tasks based on HTML form events, mapped through the Contacts API endpoints.
Render notes, histories, and activity timelines in HTML cards linked to each contact.
Create an OAuth client in GHL and obtain client ID and secret configured in HTML-CSS to Image.
Choose the endpoints you will use (e.g., GET /contacts/:contactId, POST /contacts/) and request appropriate scopes such as readonly and write.
Test API calls, map data to HTML/CSS templates, and set up automations for ongoing syncing.
Authentication uses OAuth 2.0 to grant a scoped access token for the HTML-CSS to Image app. This keeps your GHL data secure while allowing the app to read and update as configured. Expect a consent screen flow where you approve the requested scopes (readonly or write) before enterprise data can be accessed. The token can be refreshed without user intervention once configured.
Yes. With the appropriate scopes (such as contacts.readonly and contacts.write), you can read contact data and perform write operations like creating tasks or updating notes. This enables end-to-end automation from HTML/CSS templates to CRM actions. Always follow least-privilege principles and revoke access when not needed.
Commonly used endpoints include GET /contacts/:contactId to fetch a contact, GET /contacts/:contactId/tasks to list tasks, POST /contacts/ to create contacts, and POST /contacts/:contactId/tasks to create tasks. For HTML-CSS to Image workflows, focus on read endpoints to pull data and write endpoints to push updates or create tasks.
No-code options are available for many integrations, especially basic reads and writes. However, some setup—like OAuth registration, endpoint selection, and data mapping from HTML templates—may require minimal configuration. You can usually complete this with guided templates and no custom code.
Testing involves making sample API calls in a sandbox or staging environment, verifying data maps to your HTML templates, and confirming that actions (like task creation) occur as expected. Use test contacts and tasks to validate end-to-end flows before going live.
Permissions depend on the scopes granted during OAuth. Commonly, you’ll need at least readonly for data retrieval and write for creating or updating records. Apply the principle of least privilege and restrict capabilities to what is strictly necessary.
Yes. GHL enforces rate limits on API calls. If you hit thresholds, implement exponential backoff, batch requests where possible, and queue tasks to avoid spikes. For high-volume workflows, consider tiered plans or enterprise allowances.
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Complete Operations Catalog - 126 Actions & Triggers
